The EESST package implements a common format for Email Exchange of Secondary School Transcripts. MIME and OpenPGP email standards are applied to enable secure communication of academic transcripts directly from each student to his or her chosen recipients without intervention or monitoring by any third-parties. Because transcripts are digitally signed by the originating school official, transcript recipients can independently verify that transcripts received directly from students have not been altered in transit.

The Aspose.Email for Android API enables developers to design Android applications for managing and manipulating Outlook email file formats without using MS Outlook. It provides tools to create, read, and convert the Outlook MSG, PST, EML, EMLX, OST, and MHT file formats. It manages recipients, subjects, message bodies, and attachments in MSG documents. It creates and save appointments in draft format, extracts and saves calendar items from a PST, and adds Mapi Items such as Messages, Contacts, Notes, Journals, and Tasks to a PST. It also lets you manipulate message attachments with just a few lines of code.

ChildProt is a child protection policy daemon for Postfix. It checks a list of recipient addresses. If the current recipient address is found, the sender address is verified against a whitelist. If the current sender address is found, the mail will be delivered to the recipient. If the sender address is not found on the whitelist, the mail will be redirected to a delegate of the recipient. If the recipient address is not found the mail will be
delivered to the recipient too.

Getmail Retriever for Roundcube is a fork of the ispcp_fetchmail plugin for Roundcube webmail. getmail is an alternative to fetchmail. This plugin allows your Roundcube users to use getmail to retrieve mail via POP3 or IMAP and deliver that mail to the user. The backend is a PHP-CLI script run from cron which executes getmail according to a combination of settings selected by the administrator and users. Getmail Retriever supports most of what getmail supports.

wirgul creates wireless accounts automatically. It depends on a user application on the Web and approval via a link sent by email. Whenever the links are clicked, wireless accounts are created on LDAP, and the information is mailed to the applicant.

Collax Groupware Suite is a complete collaboration, e-mail, and messaging server with Outlook MAPI support. It offers enterprise email server functions, anti-spam and anti-virus filters, GUI management, a file server for SMB, NFS, FTP, and Apple shares, backup/restore server, IM server, and fax and SMS server. The groupware offers AJAX Web mail, calendar, team calendar, contacts, and tasks, and supports ActiveSync for mobile devices. It is free for private or commercial use of up to five users.

Inbucket is an email testing service, similar to Mailinator. It accepts messages for any email address and makes them available to view via a Web interface. It allows Web developers, software engineers, and system administrators to quickly see the emailed output of their applications. No per-account setup is required. Mailboxes are created on the fly as mail is received for them, and no password is required to browse the content of the mailboxes.